''Sigapatella'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of small to medium-sized

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

s, marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Calyptraeidae The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods.MolluscaBase. Calyptraeidae Lamarck, 1809. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=141 on ...

, the slipper snails, Chinese hat snails, and cup-and-saucer snails.WoRMS (2010). Sigapatella Lesson, 1831. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=391489 on 2011-10-31

Taxonomy

This group of species was originally classified under ''Calyptraea (Sigapatella)'' by Lesson in 1830. In 1990 the subgenus was elevated to the rank of genus as ''Sigapatella'' by Beu ''et al.'' and confirmed in 2000 by Camacho et al. (2000)

Description

The oval shell has a lateral

apex The apex is the highest point of something. The word may also refer to: Arts and media Fictional entities * Apex (comics) A-Bomb Abomination Absorbing Man Abraxas Abyss Abyss is the name of two characters appearing in Ameri ...

. The interior plate has a submarginal axis. The free margin is concave.

Species

Species within the genus ''Sigapatella'' include: * † '' Sigapatella americana'' Ortmann 1900 * '' Sigapatella calyptraeformis'' (

Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...

) * † '' Sigapatella crater'' (Finlay, 1926) * † '' Sigapatella gigantea'' (Beu, 1970) * '' Sigapatella hedleyi'' (Smith, 1915) Hedley's shelf limpet * † '' Sigapatella maccoyi'' (Suter, 1917) *† '' Sigapatella mapalia'' Marwick, 1929 * '' Sigapatella novaezelandiae'' (

Lesson A lesson or class is a structured period of time where learning is intended to occur. It involves one or more students (also called pupils or learners in some circumstances) being taught by a teacher or instructor. A lesson may be either one ...

, 1830) Marshall, B.A. 2003: A review of the Recent and late Cenozoic Calyptraeidae of New Zealand (Mollusca: Gastropoda). The Veliger 46: 117-144. * '' Sigapatella nukumaruana'' Marshall, 2003 Marshall B.A. 2003. ''A review of the Recent and Late Cenozoic Calyptraeidae of New Zealand (Mollusca: Gastropoda).'' The Veliger 46(2): 117-144
/ref> * '' Sigapatella ohopeana'' Marshall, 2003 * † '' Sigapatella otamatea'' Laws, 1944 * † '' Sigapatella patulosa'' Powell and Bartrum, 1929 A.W.B. Powell, Tertiary Molluscan Faunulesfrom the Waitemata Beds
/ref> * † '' Sigapatella perampla'' (Powell & Bartrum, 1929) * '' Sigapatella spadicea'' Boshier, 1961 * † '' Sigapatella subvaricosa'' Powell & Bartrum, 1929 * '' Sigapatella superstes'' Fleming, 1958 * '' Sigapatella tenuis'' (Gray, 1867) * '' Sigapatella terraenovae'' (Peile, 1924) * '' Sigapatella subvaricosa'' Powell and Partrum, 1929 * † '' Sigapatella vertex'' J. Marwick, 1926 * † ''Sigapatella (Spirogalerus) lamellaria'' (Finlay & Marwick, 1937) (synonym: ''Spirogalerus lamellaria'' Finlay & Marwick 1937) Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990)
/ref> ;Species brought into synonymy: * ''Sigapatella maculata''

Suter Suter is a surname. Notable people with the name include: * Alexis P. Suter (born 1963), American blues, and soul blues singer and songwriter * Andrew Burn Suter (1830–1895), Bishop of the Diocese of Nelson, New Zealand * Andrina Suter (bor ...

, 1913 : synonym of ''Sigapatella novaezelandiae'' (Lesson, 1830)

References

* Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979
Paleopbiology Database : Sigapatella
{{Taxonbar, from=Q3176301 Calyptraeidae Gastropods of Australia Gastropods of New Zealand Gastropod genera Taxa named by René Lesson